Covestro Bayblend® T88 GF-30 Rubber Modified PC Blend, 31% Glass Filled

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Covestro Bayblend® T88 GF-30 Rubber Modified PC Blend, 31% Glass Filled
Categories:	Polymer; Thermoplastic; Polycarbonate (PC); Polycarbonate, 30% Glass Filled
Material Notes:	Rubber modified (PC+SAN) blend; 31 % glass fiber filled; Vicat/B 120 temperature = 134 °C; optimized heat ageing- and UV-stability; very good flow; tensile modulus = 10000 MPa; good heat resistance As of 1 September 2015, Bayer MaterialScience was separated from Bayer AG and officially adopted its new name – Covestro.
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Physical Properties	Original Value	Comments

Density	1.375 g/cc	ISO 1183-1
Filler Content	31 %	Glass, Method A; b.o. ISO 3451-1
Moisture Absorption at Equilibrium	0.10 %	ISO 62, 50% RH
Water Absorption at Saturation	0.40 %	ISO 62
Viscosity	250000 cP @Shear Rate 1000 1/s, Temperature 260 °C	melt viscosity; b.o. ISO 11443-A
Linear Mold Shrinkage, Flow	0.0015 - 0.0035 cm/cm @Thickness 3.00 mm	150x105x3mm; b.o. ISO 2577
Linear Mold Shrinkage, Transverse	0.0030 - 0.0050 cm/cm @Thickness 3.00 mm	150x105x3mm; b.o. ISO 2577
Melt Flow	15.13 g/10 min @Load 0.510 kg, Temperature 260 °C	ISO 1133

Mechanical Properties	Original Value	Comments
Tensile Strength at Break	135 MPa	5 mm/min; ISO 527-1,-2
Elongation at Break	2.0 %	5 mm/min; ISO 527-1,-2
Tensile Modulus	10000 MPa	1 mm/min; ISO 527-1,-2
Izod Impact, Notched (ISO)	11.0 kJ/m² @Temperature -30.0 °C	ISO 180-A
	12.0 kJ/m² @Temperature 23.0 °C	ISO 180-A
Izod Impact, Unnotched (ISO)	40.0 kJ/m² @Temperature 23.0 °C	ISO 180-U
	40.0 kJ/m² @Temperature -30.0 °C	ISO 180-U

Electrical Properties	Original Value	Comments
Volume Resistivity	1.00e+16 ohm-cm	IEC 60093
Surface Resistance	1.00e+17 ohm	IEC 60093
Dielectric Constant	3.4 @Frequency 1e+6 Hz	IEC 60250
	3.6 @Frequency 100 Hz	IEC 60250
Dielectric Strength	35.0 kV/mm @Thickness 1.00 mm	IEC 60243-1
Dissipation Factor	0.0030 @Frequency 100 Hz	IEC 60250
	0.0085 @Frequency 1e+6 Hz	IEC 60250
Comparative Tracking Index	175 V	Solution A; IEC 60112

Thermal Properties	Original Value	Comments
CTE, linear, Parallel to Flow	25.0 µm/m-°C @Temperature 23.0 - 55.0 °C	ISO 11359-1,-2
CTE, linear, Transverse to Flow	60.0 µm/m-°C @Temperature 23.0 - 55.0 °C	ISO 11359-1,-2
Deflection Temperature at 0.46 MPa (66 psi)	134 °C	ISO 75-1,-2
Deflection Temperature at 1.8 MPa (264 psi)	126 °C	ISO 75-1,-2
Vicat Softening Point	132 °C @Load 5.10 kg	50°C/h; ISO 306
	134 °C @Load 5.10 kg	120°C/h; ISO 306
Flammability, UL94	HB @Thickness 0.850 mm

Processing Properties	Original Value	Comments
Melt Temperature	260 °C	Injection molding; ISO 294
Mold Temperature	80.0 °C	Injection molding; ISO 294
Injection Velocity	540 mm/sec	ISO 294

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PB09691 / 150823

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